import base64


def main():
    inp = input('->')
    encoded = inp.encode('utf-8')  # encoded the input (we need a bytes like object)
    b16encoded = base64.b16encode(encoded)  # b16encoded the encoded string
    print(b16encoded)
    print(base64.b16decode(b16encoded).decode('utf-8'))  # decoded it


if __name__ == '__main__':
    main()
